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congatec
AG
HEVAm100
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4.1.5
VIN_PWR_OK Signal
The VIN_PWR_OK signal is a high-active input from the main power supply to the module. The signal indicates whether the power is good. Use
jumper JP8 to configure the module’s VIN_PWR_OK signal.
Table 11 JP8 - VIN_PWR_OK Signal Settings
Pin
Description
1 - 2
Pull-up the VIN_PWR_OK signal to 3.3 V with a 1 K resistor for debug purposes (default)
3 - 4
Connect VIN_PWR_OK signal from ATX power supply
5 - 6
Connect VIN_PWR_OK signal from onboard DC/DC regulator (only in single 12 V mode)
Connector Type
JP8: 2.54 mm, 2-pin jumper
4.1.6
Power-Up Control
The module’s SUS_S3# signal controls the ATX power supply control signal (PS_ON#). When the system goes to Suspend to RAM (S3) or
Soft Off (S5), the module’s chipset asserts the ‘SUS_S3#’ signal. Through the use of an inverter, the low active ‘PS_ON#’ signal goes high and
switches off the ATX power supply.
When the system is in a power-down system state, any system wake-up event invokes the chipset of the module to deassert the ‘SUS_S3#’
signal. With the deassertion, the system transitions to Full-On state (S0).
4.1.7
Module Type Detection
The signals TYPE0, TYPE1, and TYPE2 indicate the pinout type of the module connected to the carrier board. These pins are either open (NC)
or strapped to ground (GND) by the module as shown in the table below.
Table 12 Module Type Detection Pinout Description
TYPE2
TYPE1
TYPE0
Meaning
N.C
N.C
N.C
Reserved
N.C
N.C
GND
Reserved
N.C
GND
N.C
Reserved
N.C
GND
GND
Server module - fixed 12 V input
JP8
2
1
3
5
6
4
